09212-2 – Lenovo B450
09212-2 is the Wistron main board used in the Lenovo B450 and Lenovo LA14. ChambersDesignInc.com has indexed 2 files for this board — 1 BIOS file and 1 schematic.
The earliest file dates from February 2021 (Schematics & Boardviews Archive, Cyberlan Electronics and BIOS Archive).
BIOS dumps 1
Schematics 1
Board facts
| Board number | 09212-2 |
|---|---|
| Designed by | Wistron |
| Platform group | 09XXX |
| Also known as | 48.4DM01.02M |
| First seen | 2021-02-11 |
| Source channels | Schematics & Boardviews Archive, Cyberlan Electronics, BIOS Archive |
| About the number | Wistron board numbers look like 15217-1; the first two digits usually indicate the design year. |
Laptops that use 09212-2
- Lenovo B450
- Lenovo LA14
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
A schematic is the circuit diagram of the main board: power rails, power-up sequence, component values and net names. It is the reference for measuring voltages and tracing a fault.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
Questions
Who designed the 09212-2 board?
09212-2 is a Wistron board number used by Lenovo.
Is there a boardview for 09212-2?
No boardview has been indexed for 09212-2 yet; the schematic is available on this page.
Which laptops use the 09212-2 board?
Files in the catalog link 09212-2 to the Lenovo B450 and Lenovo LA14.
Where do the download links go?
Each button opens the original public Telegram post the file was shared in. ChambersDesignInc.com only indexes and cross-references those posts.